If that doesn't help you could try this tool:
http://www.free-codecs.net/download/BigFix.htm
Some of the fixes included it deals with:
- Green video
- Video that stops after a short period
- Corrupt video
- Crashes in WMP
- Downgrading from DivX Pro 5.1
- Registration problems with Dr DivX
- Echoing or Reverberating sound in Dr DivX
- Crashing or unexpected stops in Dr DivX
- Reduced DV resolution when encoding to DivX
- DivX encoder not appearing on list of compressors
- Errors in registry or INI files
The list goes on...
READ THIS BEFORE DOING ANYTHING! IT'S IMPORTANT!
The Big Fix is provided as a quick and easy way for DivX users to fix the most common problems associated with the DivX codec.
These fixes will typically reconfigure, disable or remove third party software which is known to interfere with normal use of the DivX decoder, DivX Pro and Dr DivX software, as well as checking aspects of your system configuration for correctness.
The "Dr DivX" section contains options for removing many filters that have the *potential* to interfere with Dr DivX. This does not necessarily mean that they *will* interfere with Dr DivX. Some filters here may be required by other software on your system.
Or if everything else failse , AND ONLY THEN give this a try:
http://forums.animesuki.com/showthread.php?t=17669